I assume you want to use City Navigator Philippines with JCV on a US 3790. From Neil's post #26, you will get a blank screen for JCV. But it should work just fine if you convert your 3790 to a 3490. Search forum for how to convert.

Originally Posted by Neil

Not at all, we're only saying that as a US 3790 it can't use any Asian JCV files. The maps will work normally.

Oops, sorry about that. Would there be a better US model than the 3790 that can handle these files with ease? I'm planning in decommissioning this 3790 anyway.

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So I've installed CN Singapore/Malaysia 2014.30 on my GPS (65LM). Done the deeds to the .img and .jcv files. Fire up in simulation mode, everything works fine, including the patched JCV.

However, when I brought it out in the roads, it starts to fall apart:
1. The top left box showing lane assist and next turn arrows are missing throughout the journey
2. JCV is no longer showing up
3. There is no spoken turn instructions after the very first prompt of the trip
4. The purple line is still there throughout with current position shown correctly, but any rerouting (missed turns) takes really long to effect

The tool successfully unlocked the following JCV files of City Navigator Thailand 2014.30 Dual on a US 2595LMT with the latest software version 8.20. J014709.JCV, split screen -212 x 234, 100MBTHGLB.JCV, full screen - 400 x 366, 258MB
I didn't realized a 2595 can display JCV in full screen.
This is a great tool! Thank you.

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